package com.android.HelloAndroid;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.Toast;

public class HelloAndroidActivity extends Activity {
    /** Called when the activity is first created. */
	private EditText text;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        text = (EditText) findViewById(R.id.editText1);
    }
    
    public void myClickHandler(View view){
    	switch(view.getId()){
    	case R.id.button1:
    			RadioButton celsiusButton = (RadioButton) findViewById(R.id.radioButton1);
    			RadioButton fahrenheitButton = (RadioButton) findViewById(R.id.radioButton2);
    			if(text.getText().length() == 0){
    				Toast.makeText(this,"Please enter a valid numbet", Toast.LENGTH_LONG).show();
    				return;
    			}
    			float inputvalue = Float.parseFloat(text.getText().toString());
    			if(celsiusButton.isChecked()){
    				text.setText(String.valueOf(convertFahrenheitToCelsius(inputvalue)));
    				celsiusButton.setChecked(false);
    				fahrenheitButton.setChecked(true);
    			}
    			else{
    				text.setText(String.valueOf(convertCelsiusToFahrenheit(inputvalue)));
    				fahrenheitButton.setChecked(false);
    				celsiusButton.setChecked(true);
    			}
    			break;
    	}
    }
    
    //convert to celsius
    private float convertFahrenheitToCelsius(float fahrenheit) {
		return ((fahrenheit - 32) * 5 / 9);
	}

	// Converts to fahrenheit
	private float convertCelsiusToFahrenheit(float celsius) {
		return ((celsius * 9) / 5) + 32;
	}
    
    
    
    
    
    
    
}